From patchwork Wed Jun 13 15:31:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H.J. Lu" X-Patchwork-Id: 928931 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=sourceware.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=libc-alpha-return-93177-incoming=patchwork.ozlabs.org@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.b="gz5AQQYC"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 415W531NNpz9s01 for ; Thu, 14 Jun 2018 01:34:15 +1000 (AEST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=jNDi3junXh1+2H/LL0pfPRy5Ip1wYr/ 9QGOvQabQHl3rsj+eWfobnf+ZSoS9UcCnKDtuUnHZaXu4mSFt8VrYHhd+5FjK3bq jMwqzROM80HasVc0NYueFc9rHCo8FEGw03F77GtINAQ5bqWrn7bvJlJ/VPJIyy6k mUz6cIaE3hIQ= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=r+fK/CU2IVkELthmvHqHtom+oQw=; b=gz5AQ QYCFxy57il4bCeXQiDBaeJoKWn6bAW2zvLr6BbgTGROb5O1A3WXGKA6kqB9NLu3I wQ2o/P1wAjlsxV7HWSlNgmhxG0Tbj5NYVenFBezujbipS6+JBupoZ1chOzKU1Pu0 2CxTX5PTdw2iAlEPrTVLuDtYiDxtLNeokNTCSM= Received: (qmail 18464 invoked by alias); 13 Jun 2018 15:32:26 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 18009 invoked by uid 89); 13 Jun 2018 15:32:23 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.4 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, SPF_SOFTFAIL autolearn=ham version=3.3.2 spammy=Hx-languages-length:1063 X-HELO: mga01.intel.com X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 From: "H.J. Lu" To: libc-alpha@sourceware.org Subject: [PATCH 12/24] x86-64: Use _CET_NOTRACK in memcpy-ssse3-back.S Date: Wed, 13 Jun 2018 08:31:55 -0700 Message-Id: <20180613153207.57232-13-hjl.tools@gmail.com> In-Reply-To: <20180613153207.57232-1-hjl.tools@gmail.com> References: <20180613153207.57232-1-hjl.tools@gmail.com> * sysdeps/x86_64/multiarch/memcpy-ssse3-back.S (BRANCH_TO_JMPTBL_ENTRY): Add _CET_NOTRACK before indirect jump to jump table. (MEMCPY): Likewise. --- sysdeps/x86_64/multiarch/memcpy-ssse3-back.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S b/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S index 7e37035487..3cd1123326 100644 --- a/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S +++ b/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S @@ -39,7 +39,7 @@ lea TABLE(%rip), %r11; \ movslq (%r11, INDEX, SCALE), INDEX; \ lea (%r11, INDEX), INDEX; \ - jmp *INDEX; \ + _CET_NOTRACK jmp *INDEX; \ ud2 .section .text.ssse3,"ax",@progbits @@ -125,7 +125,7 @@ L(144bytesormore): sub $0x80, %rdx movslq (%r11, %r9, 4), %r9 add %r11, %r9 - jmp *%r9 + _CET_NOTRACK jmp *%r9 ud2 .p2align 4 @@ -155,7 +155,7 @@ L(copy_backward): sub $0x80, %rdx movslq (%r11, %r9, 4), %r9 add %r11, %r9 - jmp *%r9 + _CET_NOTRACK jmp *%r9 ud2 .p2align 4